Home / 21,470.26-32,207.60-7,430.27

Finding the Fourth Proportional to 21,470.26, 32,207.60 and 7,430.27

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Solution

The fourth proportional to 21,470.26, 32,207.60 and 7,430.27 is: 11,146.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,470.26 : 32,207.60 = 7,430.27 : x
  2. Step 2: Convert to fraction form
    21,470.26/32,207.60 = 7,430.27/x
  3. Step 3: Cross multiply
    21,470.26x = 32,207.60 × 7,430.27
  4. Step 4: Simplify right side
    21,470.26x = 239,311,071.14
  5. Step 5: Solve for x
    x = 239,311,071.14/21,470.26
  6. Step 6: Final answer
    x = 11,146.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.